Global suppression for entire solution (C#)

Question

Does any one of you know a way I'd be able to suppress e.g. CA2000 for an entire solution?

I'm thinking of something like a GlobalSuppressions class with the following line of code:

[assembly: SuppressMessage("Microsoft.Reliability", "CA2000:DisposeObjectsBeforeLosingScope")]

Thanks for your help in advance.

Possible duplicate of [Suppress warning on solution level. Treat warning as error on solution level](https://stackoverflow.com/questions/18546635/suppress-warning-on-solution-level-treat-warning-as-error-on-solution-level) — Greg, Apr 11 '18 at 00:02
Important to note, that you can edit the file that handles those. You can extend outward, ReSharper and other platforms already do this, but I believe the answer already exists here on Stack Overflow. — Greg, Apr 11 '18 at 00:03
I wouldn't be surprised if in a month you are asking why you get a memory leak — Camilo Terevinto, Apr 11 '18 at 00:12
There is a really good reason why you don't want to do this on a global level. — Ron Beyer, Apr 11 '18 at 00:44
Because it is my task to do so. Some of our head devs gave me the tasks. — GGMU, Apr 11 '18 at 01:22

score 7 · Answer 1 · answered Jul 20 '21 at 16:46

Global Suppressions can be configured in .editorconfig file.

Create a file called .editorconfig in the root folder of your solution
Open in a text editor
Add root = true in first line

Below that line add the rules to disable

[*.{cs,vb}]
dotnet_diagnostic.<Rule_Code>.severity=silent

Here is an example .editorconfig file

root = true

[*.{cs,vb}]
dotnet_diagnostic.CA2000.severity=silent

[*.{cs,vb}]
dotnet_diagnostic.MA0004.severity=silent    # Even works with 3rd part rules/analyser

score 4 · Answer 2 · answered Mar 03 '22 at 08:17

In case anyone stumbles on this, it is possible to create a global suppressions file (Eg: GlobalSuppressions.cs), add it "as link" to each project you need to. It should contains lines like: [assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Reliability", "CA2007:Consider calling ConfigureAwait on the awaited task", Justification = "ASP.NET Core doesn't use thread context to store request context.", Scope = "module")] For more details see: https://learn.microsoft.com/en-us/visualstudio/code-quality/in-source-suppression-overview?view=vs-2022#suppress-violations-using-a-global-suppression-file

score 2 · Answer 3 · answered Dec 17 '20 at 13:29

The best way of doing this is by creating a Directory.Build.props file which will be automatically included in all projects in sub-folders to where it is located. Then add the following to the file:

<?xml version="1.0" encoding="utf-8" ?>
<Project>
  <!-- This file will be automatically included in all projects because of its name -->
  <PropertyGroup>
    <NoWarn>CA2000</NoWarn>
  </PropertyGroup>
</Project>

Global suppression for entire solution (C#)

3 Answers3